. >> reporter: there's still so much pain for all close to friday's shooting. connecticut governor dan malloy wiped away tears recalling the moment he informed parents their children had died. now, he will attend so many funerals. >> you see little coffins and your heart has to ache. >> reporter: new information about the 20-year-old shooter, adam lanza, paints a picture of a young man that seemed to be unraveling. for years, her mother, nancy, shared her struggles with adam's behavioral and emotional problems with people at a newtown bar and restaurant, according to the owners. and nancy's friends say she told them in the last few months, adam was so troubled, he would not leave the house. >> she homeschooled him and everything. i knew he was on medication. but that's all i know. >> reporter: a former babysitter says he was told by nancy to never leave adam alone. >> never go to the bathroom or turn your back on him at any time. >> reporter: despite his problems, friends say nancy took her son to local firing ranges and introduced him to the world of high-powered guns. this friday, the gover

's path through is the school have emerged. according to the governor of connecticut, the rampage ended ten minutes after it began when the gunman heard wailing sirens approaching while he was in the second classroom, and she shot himself once in the head. >> we surmise it was during the second classroom episode he heard responders coming and apparently, that, had decided to take his own life. >> reporter: new clues about the 20-year-old shooter. computers and videos were removed from the lanza family home this weekend that could provide clues into his motive. friends of adam's murdered mother, nancy, say she was increasingly concerned about her son's behavioral issues over the last few months. >> i think it was just getting difficult for her to try to get him into regular life. >> reporter: all of the schools in the area are closed today. students from sandy hook elementary school will resume classes at a neighboring school in a matter of days. rob and sunny? >> in a tragedy like this, it's so important to try to remember the victims, perhaps, more than the gunman here. but we have lea

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